Intelligent electric energy meter and intelligent control system thereof

Abstract

The invention provides an intelligent electric energy meter and an intelligent control system thereof. The intelligent electric energy meter comprises a main body, a metering module, a phase line connecting seat, a power management module, a man-machine interaction module, a control module and a communication module, wherein the control module is electrically connected with the power management module, the man-machine interaction module and the communication module respectively; the phase line connecting seat is electrically connected with the metering module; the man-machine interaction module comprises keys and a display screen; in addition, the device also comprises a load clamping module which is used for clamping a verification load. According to the intelligent electric energy meter and the intelligent control system thereof, the verification load is clamped through the load clamping module, the loading voltage of the verification load is independently metered, and the convenient and rapid verification requirement is met.

Description

Technical Field

[0001] This invention relates to the field of power grid equipment technology, and in particular to a smart energy meter and its smart control system. Background Technology

[0002] A smart meter is an electricity metering device based on the Internet of Things (IoT) and digital communication technologies. It possesses functions such as high-precision metering, remote communication, real-time monitoring, and data analysis, and is a core terminal device for smart grids and energy management. Due to technological advancements and the need for grid intelligence, smart meters are gradually replacing traditional meters in households. However, compared to traditional meters, some people lack trust in the accuracy of smart meters. Furthermore, existing metering devices require highly specialized operation, making them inconvenient for ordinary users. Therefore, there is an urgent need to improve smart meters to meet the requirements for convenient and quick verification. Summary of the Invention

[0003] One of the objectives of this invention is to provide a smart energy meter and its smart control system, which clamps the verification load through a load clamping module and separately measures the voltage applied to the verification load, thereby achieving convenient and quick verification.

[0004] An embodiment of the present invention provides a smart energy meter, comprising: a main body, a metering module, a phase wire connector, a power management module, a human-machine interaction module, a control module, and a communication module; wherein, the control module is electrically connected to the power management module, the human-machine interaction module, and the communication module respectively; the phase wire connector is electrically connected to the metering module; the human-machine interaction module includes: buttons and a display screen; in addition, it also includes: a load clamping module for clamping and verifying the load.

[0005] Preferably, the communication module includes one or more of the following: an infrared communication unit, an RS485 communication unit, a carrier communication unit, a Bluetooth communication unit, and a wireless communication unit.

[0006] Preferably, the metering module includes: a signal processing unit, a metering unit, and a storage unit.

[0007] Preferably, the phase wire connector is provided with crimping holes for connecting to each terminal block.

[0008] Preferably, the load clamping module includes: a verification load receiving cavity opened on one side of the main body; a trigger body provided on the side facing the opening of the verification load receiving cavity; and clamping bodies provided on the two opposite sides.

[0009] Preferably, the clamping body is sleeved inside the setting column which is fixedly connected to the side wall of the calibration load receiving cavity; the clamping body has an annular protrusion in the middle, and a first return spring is provided between the annular protrusion and the setting column; a cylinder is provided on the side of the clamping body at the end away from the setting column; the cylinder is set in an elongated groove opened in the middle of the rotating rod; one end of the cylinder is rotatably connected to the side wall inside the main body; and a linear body is fixedly connected to the other end; the middle of the linear body passes through the end of the trigger body away from the calibration load receiving cavity.

[0010] Preferably, the trigger body includes: a first rod, a seat, and a second rod; the seat is fixedly connected to the side wall of the test load receiving cavity; the first rod is disposed in the seat near the test load receiving cavity, and the second rod is disposed in the seat away from the test load receiving cavity; a second return spring is disposed between the first rod and the second rod; the radius of the end of the first rod protruding into the test load receiving cavity is larger than that of the other end; one end of the second return spring is sleeved on one end of the first rod, and the other end is disposed in the receiving groove disposed at one end of the second rod; a through hole for a threaded body is disposed at the end of the second rod outside the seat; a contact switch is disposed in the seat, and when the first rod is pressed into the seat, the contact switch contacts the first rod and is triggered.

[0011] Preferably, the smart energy meter further includes a reset mechanism for resetting the load clamping module so that the verification load can be removed; wherein, the reset mechanism includes: a guide post and a guide post sleeve; a window is provided on one side of the guide post sleeve to allow one end of the second rod to pass through, and the guide post sleeve is fitted onto one end of the guide post; the other end of the guide post protrudes from the front of the main body; a semi-circular protrusion is provided on one side of the end of the guide post fitted into the guide post sleeve, a step is provided in the middle of the guide post, and a third reset spring is provided between the step and the guide post sleeve.

[0012] The present invention also provides an intelligent control system for any of the above-mentioned smart energy meters, comprising: a triggering unit and a detection and display unit; wherein, the triggering unit detects whether the load clamping module clamps the verification load through a contact switch; when clamped, the detection and display unit detects the voltage applied to the verification load and the current flowing through the verification load, and determines the power data based on the voltage and current and displays it on the display screen in a split-screen manner.

[0013] Preferably, the intelligent control system further includes: a disconnection unit;

[0014] After the clamped and verified load has been held for a preset first time, the disconnect unit disconnects the voltage applied to the load; before disconnecting the voltage, the detection and display unit performs a detection every preset second time interval.

[0015] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of a smart energy meter according to an embodiment of the present invention;

[0019] Figure 2 This is a side view of a smart energy meter according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the load clamping module in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the trigger body in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the reset mechanism. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] Example 1:

[0025] This invention provides a smart energy meter, such as... Figure 1 As shown, it includes: main body 1, metering module 2, phase line connector 3, power management module 4, human-machine interaction module 5, control module 6, and communication module 7; wherein, the control module 6 is electrically connected to the power management module 4, the human-machine interaction module 5, and the communication module 7 respectively; the phase line connector 3 is electrically connected to the metering module 2; the human-machine interaction module 5 includes: buttons and a display screen; in addition, it also includes: a load clamping module for clamping the calibration load.

[0026] The communication module includes one or more of the following: an infrared communication unit, an RS485 communication unit, a carrier communication unit, a Bluetooth communication unit, and a wireless communication unit.

[0027] The metering module includes a signal processing unit, a metering unit, and a storage unit.

[0028] like Figures 2 to 4 As shown, the load clamping module includes: a verification load receiving cavity 11 formed on one side of the main body; a trigger body 17 provided on the side facing the opening of the verification load receiving cavity 11; and clamping bodies 13 provided on the two opposite sides. Furthermore, in Figure 2 The middle phase line 21 is the wiring harness that connects the smart energy meter to the external load when in use;

[0029] The clamping body 13 is fitted inside the setting post 12, which is fixedly connected to the side wall of the calibration load receiving cavity 11. An annular protrusion is provided in the middle of the clamping body 13, and a first return spring 15 is provided between the annular protrusion and the setting post 12. A cylinder 14 is provided on the side of the clamping body 13 away from the setting post. The cylinder 14 is set in the elongated groove opened in the middle of the rotating rod 10 and can slide in the elongated groove. One end of the rotating rod 10 is rotatably connected to the side wall inside the main body. The other end is fixedly connected to a linear body 16. The middle part of the linear body 16 passes through the end of the trigger body 17 away from the calibration load receiving cavity 11.

[0030] The trigger body 17 includes: a first rod 171, a seat 172, and a second rod 173; the seat 172 is fixedly connected to the side wall of the test load receiving cavity 11; the first rod 171 is disposed inside the seat 172 on the side close to the test load receiving cavity 11, and the second rod 173 is disposed on the side away from the test load receiving cavity 11; a second return spring 174 is disposed between the first rod 171 and the second rod 173; the radius of one end of the first rod 171 protruding into the test load receiving cavity 11 is larger than that of the other end; one end of the second return spring 174 is sleeved on one end of the first rod 171, and the other end is disposed in the receiving groove disposed at one end of the second rod 173; the end of the second rod 173 located outside the seat 172 is provided with a through hole through which a linear body 16 passes; a contact switch is disposed inside the seat, and when the first rod is pressed into the seat, the contact switch contacts the first rod 171 and is triggered.

[0031] The present invention also provides an intelligent control system for any of the above-mentioned smart energy meters, comprising: a triggering unit and a detection and display unit; wherein, the triggering unit detects whether the load clamping module clamps the verification load through a contact switch; when clamped, the detection and display unit detects the voltage applied to the verification load and the current flowing through the verification load, and determines the power data based on the voltage and current and displays it on the display screen in a split-screen manner.

[0032] In addition, the intelligent control system also includes: a disconnection unit;

[0033] After the clamped and verified load has been held for a preset first time, the disconnect unit disconnects the voltage applied to the load; before disconnecting the voltage, the detection and display unit performs a detection every preset second time interval.

[0034] To enable tiered pricing, the intelligent control system also includes a tiered pricing unit, which performs tiered pricing based on the tiered pricing rules sent by the management server and displays the results on the screen.

[0035] Example 2:

[0036] This invention provides a smart energy meter, comprising: a main body, a metering module, a phase wire connector, a power management module, a human-machine interaction module, a control module, and a communication module; wherein the control module is electrically connected to the power management module, the human-machine interaction module, and the communication module respectively; the phase wire connector is electrically connected to the metering module; the human-machine interaction module includes: buttons and a display screen; furthermore, it also includes: a load clamping module for clamping a verification load.

[0037] The communication module includes one or more of the following: an infrared communication unit, an RS485 communication unit, a carrier communication unit, a Bluetooth communication unit, and a wireless communication unit.

[0038] The metering module includes a signal processing unit, a metering unit, and a storage unit.

[0039] The load clamping module includes: a test load receiving cavity opened on one side of the main body; a trigger body provided on the side facing the opening of the test load receiving cavity; and clamping bodies provided on the two opposite sides.

[0040] The clamping body is fitted inside the setting column, which is fixedly connected to the side wall of the calibration load receiving cavity; the clamping body has an annular protrusion in the middle, and a first return spring is provided between the annular protrusion and the setting column; a cylinder is provided on the side of the clamping body at the end away from the setting column; the cylinder is set in an elongated groove opened in the middle of the rotating rod; one end of the cylinder is rotatably connected to the side wall inside the main body; the other end is fixedly connected to a wire; the middle of the wire passes through the end of the trigger body away from the calibration load receiving cavity.

[0041] The trigger body includes: a first rod, a base, and a second rod; the base is fixedly connected to the side wall of the test load receiving cavity; the first rod is located in the base near the test load receiving cavity, and the second rod is located in the base away from the test load receiving cavity; a second return spring is provided between the first rod and the second rod; the radius of the end of the first rod that protrudes into the test load receiving cavity is larger than that of the other end; one end of the second return spring is sleeved on one end of the first rod, and the other end is located in the receiving groove at one end of the second rod; a through hole for a wire-like body is provided at the end of the second rod outside the base; a contact switch is provided in the base, and when the first rod is pressed into the base, the contact switch contacts the first rod and is triggered.

[0042] The smart energy meter also includes a reset mechanism for resetting the load clamping module so that the verification load can be removed; wherein, for example... Figure 5 As shown, the reset mechanism includes: a guide post 18 and a guide post sleeve 19; a window is provided on one side of the guide post sleeve 19 to allow one end of the second rod 173 to pass through, and the guide post sleeve 19 is fitted onto one end of the guide post 18; the other end of the guide post 18 protrudes from the front of the main body 1; a semi-circular protrusion is provided on one side of the end of the guide post 18 fitted into the guide post sleeve 19, a step is provided in the middle of the guide post, and a third reset spring 20 is provided between the step and the guide post sleeve.

[0043] This embodiment also provides an intelligent control system applied to the above-mentioned smart energy meter, including: a triggering unit and a detection and display unit; wherein, the triggering unit detects whether the load clamping module clamps the verification load through a contact switch; when clamped, the detection and display unit detects the voltage applied to the verification load and the current flowing through the verification load, and determines the power data based on the voltage and current and displays it on the display screen in a split-screen manner.

[0044] In addition, the intelligent control system also includes: a disconnection unit;

[0045] After the clamped and verified load has been held for a preset first time, the disconnect unit disconnects the voltage applied to the load; before disconnecting the voltage, the detection and display unit performs a detection every preset second time interval.

[0046] With the development of new energy electric vehicles, charging piles have gradually become an electrical appliance in the parking spaces of various households. As they are high-power appliances, monitoring them is necessary. The intelligent control system also includes: an electrical load identification unit, an alert unit, and an active control unit; the electrical load identification unit identifies the type of electrical load connected; when a charging pile is detected, the alert unit alerts people inside the house; the active control unit is used to actively disconnect the power supply to the charging pile when it is illegally connected; illegal connection can be detected by analyzing factors such as charging time and whether there are people inside the house.

[0047] The load identification unit identifies the type of connected electrical loads, including: retrieving identification results from a pre-configured load identification database based on the difference between the current at the previous moment and the current at the current moment; the load identification database is pre-configured and updated based on historical electricity usage records, and the difference is associated with the identification result; the identification result is retrieved by matching the identified difference with the difference between the current at the previous moment and the current at the current moment; the matching method is to calculate the difference between the two, and when the calculated value is the smallest among all the calculated results in the database, the two are considered to be matched; when configuring the load identification database, a unified load identification database is usually used for configuration in order to speed up the configuration, but for individual households, due to different line lengths and individual differences of electrical appliances... Due to various factors, there may be situations where electrical appliances have different current requirements. To better adapt to different households, updating historical electricity usage records is necessary to improve the accuracy of appliance identification. The specific update steps are as follows: Identify the type of electrical load in historical electricity usage records to obtain identification records; group the records based on the type of electrical load; perform secondary grouping based on the difference in current in the identification records to obtain groups corresponding to each appliance; determine the identification difference value used for updating based on the difference in current in the groups; update the identification difference value of the corresponding item in the load identification database based on the identification difference value used for updating; the secondary grouping involves statistically analyzing the distribution of the difference values ​​to identify multiple valley values, and using these valley values ​​as the grouping boundaries.

[0048] In addition, manual fine-tuning is also possible. Household members can connect to the control module of the smart meter via mobile terminal communication to request fine-tuning. Household members then turn on and off each household appliance one by one. When an appliance is turned on, the control module outputs the identification result, receives the changes made to the identification result by the user, and uses the current at this time as the identifier difference to fine-tune the item in the load identification library corresponding to the identification result. For example, if the identification result is "light", the fine-tuned identification result is "living room light".

[0049] The determination of illegal access to charging piles includes:

[0050] If the access time is outside the pre-configured available access time range, it is determined to be an illegal access.

[0051] And / or,

[0052] When the access time is nighttime and the household electricity consumption is equal to the minimum household electricity consumption (electricity consumption when appliances such as refrigerators are always on), if no normal access feedback is received after a preset time (30 minutes) after sending a reminder to the pre-configured mobile terminal, it is determined to be an illegal access.

[0053] And / or,

[0054] When the access time is nighttime and the household electricity consumption is not equal to the minimum household electricity consumption, if no normal access feedback is received after a preset time following a reminder device set in the home, it is determined to be an illegal access;

[0055] And / or,

[0056] If no normal access feedback is received after sending a reminder to a pre-configured mobile terminal and a reminder device set up in the home during daytime access, it is determined to be an unauthorized access.

[0057] When linked with a smart door lock and / or an image acquisition device configured above the entrance door to capture images of the doorway, the number of people inside the home is determined by the smart door lock and / or the image acquisition device; when the number is greater than or equal to the pre-configured total number of people inside the home, the access of the charging pile can be judged as illegal access.

[0058] Example 3:

[0059] This invention provides a smart energy meter, comprising: a main body, a metering module, a phase wire connector, a power management module, a human-machine interaction module, a control module, and a communication module; wherein the control module is electrically connected to the power management module, the human-machine interaction module, and the communication module respectively; the phase wire connector is electrically connected to the metering module; the human-machine interaction module includes: buttons and a display screen; furthermore, it also includes: a load clamping module for clamping a verification load.

[0060] The communication module includes one or more of the following: an infrared communication unit, an RS485 communication unit, a carrier communication unit, a Bluetooth communication unit, and a wireless communication unit.

[0061] The metering module includes a signal processing unit, a metering unit, and a storage unit.

[0062] The phase wire connector is equipped with crimp holes for connecting to each terminal block.

[0063] The load clamping module includes: a test load receiving cavity opened on one side of the main body; a trigger body provided on the side facing the opening of the test load receiving cavity; and clamping bodies provided on the two opposite sides.

[0064] The clamping body is fitted inside the setting column, which is fixedly connected to the side wall of the calibration load receiving cavity; the clamping body has an annular protrusion in the middle, and a first return spring is provided between the annular protrusion and the setting column; a cylinder is provided on the side of the clamping body at the end away from the setting column; the cylinder is set in an elongated groove opened in the middle of the rotating rod; one end of the cylinder is rotatably connected to the side wall inside the main body; the other end is fixedly connected to a wire; the middle of the wire passes through the end of the trigger body away from the calibration load receiving cavity.

[0065] The trigger body includes: a first rod, a base, and a second rod; the base is fixedly connected to the side wall of the test load receiving cavity; the first rod is located in the base near the test load receiving cavity, and the second rod is located in the base away from the test load receiving cavity; a second return spring is provided between the first rod and the second rod; the radius of the end of the first rod that protrudes into the test load receiving cavity is larger than that of the other end; one end of the second return spring is sleeved on one end of the first rod, and the other end is located in the receiving groove at one end of the second rod; a through hole for a wire-like body is provided at the end of the second rod outside the base; a contact switch is provided in the base, and when the first rod is pressed into the base, the contact switch contacts the first rod and is triggered.

[0066] The present invention also provides an intelligent control system for any of the above-mentioned smart energy meters, comprising: a triggering unit and a detection and display unit; wherein, the triggering unit detects whether the load clamping module clamps the verification load through a contact switch; when clamped, the detection and display unit detects the voltage applied to the verification load and the current flowing through the verification load, and determines the power data based on the voltage and current and displays it on the display screen in a split-screen manner.

[0067] In addition, the intelligent control system also includes: a disconnection unit;

[0068] After the clamped and tested load has been held for a preset first time, the disconnect unit disconnects the voltage applied to the load; before disconnecting the voltage, the detection and display unit performs a detection every preset second time interval. The first time interval can be set to any value between 10 minutes and 2 hours; the second time interval can be set to any value between 1 minute and 30 minutes; the first time interval must be greater than or equal to five times the second time interval.

[0069] To facilitate users' remote operation needs, the intelligent control system also includes: a login verification unit and a remote control unit; the login verification unit is used for remote login verification of users; the remote control unit receives and executes remote control commands sent by users through mobile terminals; remote control commands include: viewing, disconnecting appliances, etc.

[0070] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A smart energy meter, comprising: The system comprises a main body, a metering module, a phase wire connector, a power management module, a human-machine interface module, a control module, and a communication module; wherein the control module is electrically connected to the power management module, the human-machine interface module, and the communication module; the phase wire connector is electrically connected to the metering module; the human-machine interface module includes buttons and a display screen; and is characterized by further including a load clamping module for clamping the calibration load.

2. The smart energy meter as described in claim 1, characterized in that, The communication module includes one or more of the following: infrared communication unit, RS485 communication unit, carrier communication unit, Bluetooth communication unit, and wireless communication unit.

3. The smart energy meter as described in claim 1, characterized in that, The metering module includes a signal processing unit, a metering unit, and a storage unit.

4. The smart energy meter as described in claim 1, characterized in that, The phase wire connector is equipped with crimp holes for connecting to each terminal block.

5. The smart energy meter as described in claim 1, characterized in that, The load clamping module includes: a test load receiving cavity opened on one side of the main body; a trigger body provided on the side facing the opening of the test load receiving cavity; and clamping bodies provided on the two opposite sides.

6. The smart energy meter as described in claim 5, characterized in that, The clamping body is fitted inside the setting column, which is fixedly connected to the side wall of the calibration load receiving cavity; the clamping body has an annular protrusion in the middle, and a first return spring is provided between the annular protrusion and the setting column; a cylinder is provided on the side of the clamping body at the end away from the setting column; the cylinder is set in an elongated groove opened in the middle of the rotating rod; one end of the cylinder is rotatably connected to the side wall inside the main body; the other end is fixedly connected to a wire; the middle of the wire passes through the end of the trigger body away from the calibration load receiving cavity.

7. The smart energy meter as described in claim 6, characterized in that, The trigger body includes: a first rod, a base, and a second rod; the base is fixedly connected to the side wall of the test load receiving cavity; the first rod is located in the base near the test load receiving cavity, and the second rod is located in the base away from the test load receiving cavity; a second return spring is provided between the first rod and the second rod; the radius of the end of the first rod that protrudes into the test load receiving cavity is larger than that of the other end; one end of the second return spring is sleeved on one end of the first rod, and the other end is located in the receiving groove at one end of the second rod; a through hole for a wire-like body is provided at the end of the second rod outside the base; a contact switch is provided in the base, and when the first rod is pressed into the base, the contact switch contacts the first rod and is triggered.

8. The smart energy meter as described in claim 7, characterized in that, It also includes a reset mechanism for resetting the load clamping module so that the verification load can be removed; wherein, the reset mechanism includes: a guide post and a guide post sleeve; a window is opened on one side of the guide post sleeve to allow one end of the second rod to pass through, and the guide post sleeve is fitted on one end of the guide post; the other end of the guide post protrudes from the front of the main body; a semi-circular protrusion is provided on one side of the end of the guide post fitted inside the guide post sleeve, a step is provided in the middle of the guide post, and a third reset spring is provided between the step and the guide post sleeve.

9. An intelligent control system, applied to a smart energy meter as described in any one of claims 1 to 8, characterized in that, include: The system includes a triggering unit and a detection and display unit. The triggering unit detects whether the load clamping module is clamping the verification load via a contact switch. When clamped, the detection and display unit detects the voltage applied to the verification load and the current flowing through the verification load. Based on the voltage and current, it determines the power data and displays it on the screen in a split-screen manner.

10. The intelligent control system as described in claim 9, characterized in that, Also includes: Disconnect the unit; After the clamping and verification load has been clamped for a preset first time, the disconnect unit disconnects the voltage applied to the load; Before the voltage is disconnected, the detection display unit performs a detection every preset second time interval.

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